Cancer cells can lie dormant for years and then suddenly start spreading.
COVID-19 may increase the risk of giving birth prematurely, according to the largest study to date on this link.
Scientists have created key parts of synthetic brain cells that can hold cellular "memories" for milliseconds. The achievement could one day lead to computers that work like the human brain.
After 50 years of searching, neuroscientists have found what could be called "grandmother neurons," they are reporting.
Humans may be able to live for between 120 and 150 years, but no longer than this "absolute limit" on human life span, a new study suggests.